I haven't discussed it before on EC, but you might discuss the possibility of using Vinpocetine, Melatonin and Lecithin for your condition with your doctor as preliminary approaches prior to going on pharmaceuticals. All three have very good safety profiles
Vinpocetine can increase blood flow to the brain quickly in an attempt to reverse poor blood and oxygen availability in the microvasculature of the brain.
Melatonin is protective of the brain and has antiinflammatory effects in the brain and very significantly lowers damaging oxidative stress. It can help repair damage from TIA and ischemic strokes while having anticoagulant activity. It is also useful for stroke prevention as I have written about on this forum.
Lecithin very significantly lowers LDL cholesterol, VLDL cholesterol and triglycerides while raising HDL cholesterol and avoids the bad side effects of statins such as tendon and ligament damage, muscle pain, muscle damage and sudden memory deficit.
Since this is mainly affecting the brain and although you sound like you are opposed to pharmaceuticals, you definitely need your doctors supervision for something so critical.
Good luck on your health journey and keep us posted on your progress!